As part of a design refresh of my personal website, I released version 0.2.0 of Screen. I would love to get some feedback and, hopefully, more people using it. It is open source under a MIT License.
I think it's just me but I find the difference between h1 and others too stark which could be a good thing for some use cases but without knowing what those are or what the focus is, that limits its usage.
Value proposition of your project might improve by focusing on problems others aren't. Not everything needs to be generalized (this area is too competitive). :D
Nice work!